./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memcleanup.prp --file /storage/repos/svcomp/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f9ac6d0b4f176160999f5c2051c2fd2150d4bff .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memtrack) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:03:35,101 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:03:35,103 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:03:35,115 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:03:35,115 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:03:35,116 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:03:35,118 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:03:35,120 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:03:35,122 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:03:35,123 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:03:35,124 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:03:35,124 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:03:35,125 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:03:35,126 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:03:35,128 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:03:35,129 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:03:35,129 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:03:35,132 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:03:35,134 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:03:35,136 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:03:35,138 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:03:35,139 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:03:35,142 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:03:35,142 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:03:35,142 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:03:35,143 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:03:35,145 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:03:35,146 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:03:35,147 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:03:35,148 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:03:35,148 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:03:35,149 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:03:35,149 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:03:35,149 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:03:35,151 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:03:35,152 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:03:35,152 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2018-11-28 23:03:35,168 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:03:35,169 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:03:35,169 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:03:35,170 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:03:35,170 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:03:35,170 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:03:35,171 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:03:35,171 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:03:35,171 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:03:35,172 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:03:35,172 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:03:35,172 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:03:35,172 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:03:35,172 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 23:03:35,172 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 23:03:35,173 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:03:35,173 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:03:35,173 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:03:35,173 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:03:35,173 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:03:35,173 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:03:35,175 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:03:35,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:03:35,176 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:03:35,176 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:03:35,176 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:03:35,176 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:03:35,177 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f9ac6d0b4f176160999f5c2051c2fd2150d4bff [2018-11-28 23:03:35,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:03:35,239 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:03:35,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:03:35,245 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:03:35,245 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:03:35,246 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i [2018-11-28 23:03:35,311 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbef65e76/0cbb279becb04566acbdd14cffc0c64b/FLAGdea4baeba [2018-11-28 23:03:35,910 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:03:35,915 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-properties/list_flag_false-unreach-call_false-valid-memcleanup.i [2018-11-28 23:03:35,933 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbef65e76/0cbb279becb04566acbdd14cffc0c64b/FLAGdea4baeba [2018-11-28 23:03:36,131 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbef65e76/0cbb279becb04566acbdd14cffc0c64b [2018-11-28 23:03:36,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:03:36,136 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 23:03:36,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:03:36,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:03:36,144 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:03:36,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:03:36" (1/1) ... [2018-11-28 23:03:36,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fe42a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:36, skipping insertion in model container [2018-11-28 23:03:36,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:03:36" (1/1) ... [2018-11-28 23:03:36,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:03:36,220 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:03:36,632 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:03:36,650 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:03:36,732 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:03:36,882 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:03:36,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:36 WrapperNode [2018-11-28 23:03:36,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:03:36,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:03:36,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:03:36,885 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:03:36,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:36" (1/1) ... [2018-11-28 23:03:36,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:36" (1/1) ... [2018-11-28 23:03:36,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:36" (1/1) ... [2018-11-28 23:03:36,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:36" (1/1) ... [2018-11-28 23:03:36,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:36" (1/1) ... [2018-11-28 23:03:36,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:36" (1/1) ... [2018-11-28 23:03:36,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:36" (1/1) ... [2018-11-28 23:03:36,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:03:36,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:03:36,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:03:36,961 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:03:36,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:03:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:03:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:03:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-11-28 23:03:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:03:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 23:03:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 23:03:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 23:03:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 23:03:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 23:03:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 23:03:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 23:03:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 23:03:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 23:03:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 23:03:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 23:03:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 23:03:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 23:03:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 23:03:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 23:03:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 23:03:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 23:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 23:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 23:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 23:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 23:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 23:03:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 23:03:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 23:03:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 23:03:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 23:03:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 23:03:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 23:03:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 23:03:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 23:03:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 23:03:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 23:03:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 23:03:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 23:03:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 23:03:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 23:03:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 23:03:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 23:03:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 23:03:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 23:03:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 23:03:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 23:03:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 23:03:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 23:03:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 23:03:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 23:03:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 23:03:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 23:03:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 23:03:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 23:03:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 23:03:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 23:03:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 23:03:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 23:03:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 23:03:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 23:03:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 23:03:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 23:03:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 23:03:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 23:03:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 23:03:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 23:03:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 23:03:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 23:03:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 23:03:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 23:03:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 23:03:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 23:03:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 23:03:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 23:03:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 23:03:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 23:03:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 23:03:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 23:03:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 23:03:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 23:03:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 23:03:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 23:03:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 23:03:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 23:03:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 23:03:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 23:03:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 23:03:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 23:03:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 23:03:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 23:03:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 23:03:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 23:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 23:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 23:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 23:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 23:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 23:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 23:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 23:03:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 23:03:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 23:03:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 23:03:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 23:03:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 23:03:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 23:03:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 23:03:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 23:03:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-11-28 23:03:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:03:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:03:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 23:03:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 23:03:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 23:03:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 23:03:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:03:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:03:37,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 23:03:37,832 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:03:37,833 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-11-28 23:03:37,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:03:37 BoogieIcfgContainer [2018-11-28 23:03:37,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:03:37,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:03:37,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:03:37,837 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:03:37,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:03:36" (1/3) ... [2018-11-28 23:03:37,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166a487c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:03:37, skipping insertion in model container [2018-11-28 23:03:37,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:36" (2/3) ... [2018-11-28 23:03:37,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166a487c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:03:37, skipping insertion in model container [2018-11-28 23:03:37,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:03:37" (3/3) ... [2018-11-28 23:03:37,841 INFO L112 eAbstractionObserver]: Analyzing ICFG list_flag_false-unreach-call_false-valid-memcleanup.i [2018-11-28 23:03:37,851 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:03:37,862 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-11-28 23:03:37,880 INFO L257 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2018-11-28 23:03:37,908 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:03:37,909 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:03:37,909 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 23:03:37,909 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:03:37,910 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:03:37,910 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:03:37,910 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:03:37,910 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:03:37,911 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:03:37,932 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-11-28 23:03:37,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:03:37,942 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:37,943 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:37,946 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION]=== [2018-11-28 23:03:37,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:37,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1106867600, now seen corresponding path program 1 times [2018-11-28 23:03:37,955 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:37,955 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:37,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:37,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:38,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:38,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:38,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:38,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:03:38,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 23:03:38,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 23:03:38,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 23:03:38,113 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-11-28 23:03:38,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:38,136 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2018-11-28 23:03:38,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:03:38,138 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-28 23:03:38,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:38,147 INFO L225 Difference]: With dead ends: 61 [2018-11-28 23:03:38,147 INFO L226 Difference]: Without dead ends: 53 [2018-11-28 23:03:38,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 23:03:38,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-28 23:03:38,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-11-28 23:03:38,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-28 23:03:38,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2018-11-28 23:03:38,192 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 10 [2018-11-28 23:03:38,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:38,192 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2018-11-28 23:03:38,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 23:03:38,193 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2018-11-28 23:03:38,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 23:03:38,193 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:38,193 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:38,194 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION]=== [2018-11-28 23:03:38,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:38,194 INFO L82 PathProgramCache]: Analyzing trace with hash 46809097, now seen corresponding path program 1 times [2018-11-28 23:03:38,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:38,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:38,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:38,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:38,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:38,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:38,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:38,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:03:38,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:03:38,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:03:38,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:03:38,311 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 4 states. [2018-11-28 23:03:38,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:38,700 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2018-11-28 23:03:38,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:03:38,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 23:03:38,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:38,704 INFO L225 Difference]: With dead ends: 61 [2018-11-28 23:03:38,704 INFO L226 Difference]: Without dead ends: 61 [2018-11-28 23:03:38,705 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:03:38,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-11-28 23:03:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2018-11-28 23:03:38,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-28 23:03:38,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2018-11-28 23:03:38,715 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 11 [2018-11-28 23:03:38,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:38,715 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2018-11-28 23:03:38,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:03:38,715 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2018-11-28 23:03:38,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 23:03:38,716 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:38,716 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:38,716 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION]=== [2018-11-28 23:03:38,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:38,717 INFO L82 PathProgramCache]: Analyzing trace with hash 46809098, now seen corresponding path program 1 times [2018-11-28 23:03:38,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:38,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:38,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:38,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:38,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:38,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:38,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:38,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:03:38,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:03:38,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:03:38,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:03:38,812 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand 4 states. [2018-11-28 23:03:39,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:39,400 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2018-11-28 23:03:39,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:03:39,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 23:03:39,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:39,404 INFO L225 Difference]: With dead ends: 72 [2018-11-28 23:03:39,404 INFO L226 Difference]: Without dead ends: 72 [2018-11-28 23:03:39,404 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:03:39,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-28 23:03:39,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 65. [2018-11-28 23:03:39,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-28 23:03:39,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2018-11-28 23:03:39,415 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 11 [2018-11-28 23:03:39,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:39,415 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2018-11-28 23:03:39,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:03:39,415 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2018-11-28 23:03:39,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 23:03:39,416 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:39,416 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:39,417 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION]=== [2018-11-28 23:03:39,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:39,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1944909317, now seen corresponding path program 1 times [2018-11-28 23:03:39,417 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:39,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:39,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:39,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:39,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:03:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:03:39,482 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 23:03:39,498 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 23:03:39,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:03:39 BoogieIcfgContainer [2018-11-28 23:03:39,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:03:39,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:03:39,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:03:39,518 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:03:39,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:03:37" (3/4) ... [2018-11-28 23:03:39,522 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 23:03:39,525 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 23:03:39,589 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:03:39,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:03:39,590 INFO L168 Benchmark]: Toolchain (without parser) took 3455.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -72.5 MB). Peak memory consumption was 69.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:39,592 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:03:39,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:39,594 INFO L168 Benchmark]: Boogie Preprocessor took 75.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:39,594 INFO L168 Benchmark]: RCFGBuilder took 872.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:39,595 INFO L168 Benchmark]: TraceAbstraction took 1683.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:39,596 INFO L168 Benchmark]: Witness Printer took 71.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:39,601 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 746.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 872.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1683.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * Witness Printer took 71.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 626]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L627] int flag = __VERIFIER_nondet_int(); [L628] List p, a, t; [L629] a = (List) malloc(sizeof(struct node)) VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}] [L630] COND FALSE !(a == 0) VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}] [L631] p = a VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}] [L632] COND FALSE !(__VERIFIER_nondet_int()) [L643] p->h = 3 VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}] [L644] p = a VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}] [L645] COND FALSE !(\read(flag)) VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}] [L649] EXPR p->h VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}, p->h=3] [L649] COND FALSE !(p->h == 1) [L651] EXPR p->h VAL [a={12:0}, flag=0, malloc(sizeof(struct node))={12:0}, p={12:0}, p->h=3] [L651] COND FALSE !(p->h != 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 63 locations, 21 error locations. UNSAFE Result, 1.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 117 SDtfs, 181 SDslu, 35 SDs, 0 SdLazy, 102 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 881 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...